EP0771738A1 - Vakuumverpackung mit speziellem Äusseren sowie Verfahren und Gerät zur Erzielung einer solchen Vakuumverpackung - Google Patents

Vakuumverpackung mit speziellem Äusseren sowie Verfahren und Gerät zur Erzielung einer solchen Vakuumverpackung Download PDF

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Publication number
EP0771738A1
EP0771738A1 EP96203042A EP96203042A EP0771738A1 EP 0771738 A1 EP0771738 A1 EP 0771738A1 EP 96203042 A EP96203042 A EP 96203042A EP 96203042 A EP96203042 A EP 96203042A EP 0771738 A1 EP0771738 A1 EP 0771738A1
Authority
EP
European Patent Office
Prior art keywords
pack
vacuum
pressure
inside walls
holder
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP96203042A
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English (en)
French (fr)
Inventor
Mathias Leonardus Cornelis Aarts
Arjan Tonnis Smit
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sara Lee DE NV
Original Assignee
Sara Lee DE NV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sara Lee DE NV filed Critical Sara Lee DE NV
Publication of EP0771738A1 publication Critical patent/EP0771738A1/de
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B31/00—Packaging articles or materials under special atmospheric or gaseous conditions; Adding propellants to aerosol containers
    • B65B31/02—Filling, closing, or filling and closing, containers or wrappers in chambers maintained under vacuum or superatmospheric pressure or containing a special atmosphere, e.g. of inert gas
    • B65B31/021—Filling, closing, or filling and closing, containers or wrappers in chambers maintained under vacuum or superatmospheric pressure or containing a special atmosphere, e.g. of inert gas the containers or wrappers being interconnected
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/18—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient
    • B65D81/20—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas
    • B65D81/2007—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas under vacuum
    • B65D81/2023—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas under vacuum in a flexible container

Definitions

  • the invention relates to a vacuum pack manufactured from a thin-walled and flexible packaging foil and filled with a granular material.
  • the invention also relates to a method and apparatus for obtaining a vacuum pack.
  • Such a known vacuum pack, method and apparatus are known, for instance, from Dutch patent application 9001945.
  • the finished vacuum pack is here obviously designed in the form of a rectangular pack with flat sidewalls.
  • the invention provides an entirely different solution, which does not entail the above-mentioned disadvantages.
  • the vacuum pack according to the invention is accordingly characterized in that the pack has a desired shape deviating from a beam, which shape is maintained as a result of the vacuum pressure prevailing in the pack.
  • the invention is based inter alia on the insight that a vacuum pack can be given a random shape, which is maintained as a result of the normal atmospheric pressure.
  • a beam is here understood to refer to a cube or a rectangular parallelepiped.
  • the pack comprises a bottom and at least two opposite upright sidewalls, with the two upright sidewalls at least substantially slanting towards each other in upward direction.
  • a pack is experienced by the consumer as 'triangular' or 'pyramid-shaped'.
  • the invention is not limited to these shapes.
  • the contents of a pack manufactured from a thin-walled and flexible packaging foil, placed in a holder and filled with granular material, are compressed by pressing two opposite inside walls of the holder towards each other, while during at least a part of the period in which the pack is compressed, on the outside of the pack a pressure is present which corresponds with the instantaneous pressure on the inside of the pack in such a manner that the pack is deformable, with at least a first portion of a first inside wall of the opposite inside walls and at least a second portion of a second inside wall of the opposite inside walls being directed obliquely relative to each other at least during a part of the period in which the pack is deformable, these portions of the inside walls shaping the pack in such a manner that the pack assumes a desired shape deviating from a beam.
  • the opposite inside walls at least substantially slant towards each other at least during a part of the period in which the contents of the pack are compressed.
  • the above-described special pack can be manufactured with a 'triangular' appearance.
  • An apparatus for obtaining a vacuum pack filled with granular material, with a predetermined shape, comprising a holder for placing therein the pack manufactured from a thin-walled and flexible packaging foil, with the holder comprising at least two opposite inside walls which can be pressed towards each other for compressing the contents of the pack, is characterized in that at least a first portion of a first inside wall of the opposite inside walls and at least a second portion of a second inside wall of the opposite inside walls are directed obliquely (not parallel) relative to each other at least during a part of the period in which the pack is compressed, these portions of the inside walls shaping the pack during the compression in such a manner that the pack assumes a shape deviating from a beam.
  • a possible starting point for obtaining a filled vacuum pack manufactured from a thin-walled and flexible packaging foil and filled with a granular material is a pack 2 which is still open at the top, as shown in Fig. 1.
  • a vacuum pack 2' filled with granular material which has been evacuated and has been folded up and sealed at the top thereof, as shown in Fig. 2.
  • a third possibility is a pack 2'' filled with granular material, which has not been evacuated yet but has been folded up and sealed at the top thereof, as shown in Fig. 13.
  • the starting point is a rectangular, that is, a beam-shaped pack.
  • a beam is here understood to refer to a rectangular parallelepiped, inclusive of a cube.
  • Fig. 3 shows a holder 4 with two opposite inside walls 6, 8 which are interconnected at their upper end through a pair of springy hinges 10.
  • the inside walls 6, 8 are of rigid design.
  • the hinges each consist, for instance, of a springy metal wire, which at its ends is fixedly connected to the first inside wall 6 and the second inside wall 8, respectively.
  • the hinges allow a displacement, in order that the inside walls can be pressed towards each other, as shown in Fig. 4.
  • a pack 2, 2', 2'' can be received, see also Fig. 5.
  • the filled pack 2 has already been folded up at the top thereof, but not yet sealed.
  • the packs 2' and 2'' in Fig. 5 are folded up too and also sealed.
  • a folded upper part 9 of the pack 2, 2', 2'' projects through the hinges, outside the holder 4.
  • the pack 2, 2', 2'' has been placed on a bottom 14, whereafter the holder 4 has been arranged over the pack.
  • the bottom 14 has a width approximately corresponding with the width of a bottom 18 of the pack 2, 2', 2''.
  • this is not essential and can also be designed differently.
  • the bottom can also be omitted.
  • the portions of the inside walls referred to taper towards each other.
  • the inside walls are each located at least substantially in a flat plane and are not parallel to each other at least during a part of the period in which the contents of the pack are compressed.
  • Fig. 7 shows a part of the apparatus according to the invention, which comprises a chamber 20 with an airtightly closable access opening 22, a vacuum means 24, 25 for evacuating the chamber, pressure means 26, 28, 30 for pressing towards each other the inside walls 6, 8, and control means 31 for controlling the vacuum means and the pressure means.
  • the pressure means comprise a flexible bag or envelope 26 manufactured from, for instance, rubber.
  • the pressure means further comprise a pressure fluid unit 30 for supplying a pressure fluid such as air or water externally of the bag-shaped envelope 26 via a connection 28.
  • the bag Upon placement in the chamber, the bag has a flanged upper edge 32 resting on the flat upper edge of the chamber, with the bottom of the bag resting on the bottom of the chamber.
  • the bag can be removable or, for instance, be fixed permanently in the chamber.
  • the edge 32 of the bag also serves as an airtight sealing between the upper edge of the chamber and a cover 34, to be placed on the chamber, centrally provided with a slotted opening 36.
  • a vacuum element 24 can be airtightly mounted on the cover 34, this vacuum element 24 being provided with a connection 38 connected to a vacuum pump 25 controlled by the control means 31. The vacuum element and the vacuum pump together form the vacuum means referred to.
  • the holder 4 (inclusive of the bottom 14) with the pack 2, 2', as shown in Fig. 5, is placed in the bag 26 or secured therein.
  • the dimensions of the holder 4 and the bag 26 are preferably such that the holder 4 can be placed in the bag with a little clearance.
  • the shape of the bag can, if desired, be adapted to the more or less triangular shape of the holder.
  • the chamber can now be closed with the cover 34.
  • the upright edge 9 of the pack 2, 2' projects through the slotted opening 36 in the cover. This situation is shown in Fig. 8.
  • the vacuum element 24 is placed on the cover 20 with an airtight seal.
  • the apparatus is now ready for use. First of all, it is assumed that the chamber accommodates a holder with a pack 2 which has been folded up but has not been evacuated yet.
  • the apparatus of Fig. 7 further comprises diagrammatically represented folding means 40, mounted on the cover 34 and controlled by the control means 31, which folding means can keep the upright edge 9 of the pack 2 pressed shut to some extent, so that air can escape from the pack, only gradually so, via the gap formed in the edge (flap) 9.
  • line A represents the course of the pressure within the bag 26, in which the holder 4 with the pack 2 are disposed.
  • the dotted line B represents the course of the pressure in the pack 2.
  • the apparatus as described hereinbefore, is ready for use and the pressure in the pack and the pressure inside the space 12 of the holder is approximately 1 atm.
  • the control unit controls the vacuum pump 25 in such a manner that it is activated. As a result, the pressure in the interior space 12 of the holder 4, but outside the pack, will gradually decrease to a minimum value of, for instance, 50 mbar (see line A).
  • the pressure in the pack 2 will likewise start to decrease gradually, but less fast than in the space 12 outside the pack. The result is that the pack 2 will tend to expand. As a result, the foil of which the pack is made, will be stretched and crinkles, if any, will disappear from the foil material of the pack 2.
  • the walls of the pack end up disposed against the inside walls 6, 8. Owing to the fact that the pressure inside and outside the pack more or less correspond up to time T7, the pack 2 is easily deformable.
  • the control means activate at time t4 the pressure fluid unit 30 for supplying the pressure fluid externally of the bag-shaped envelope 26 via a connection 28, so that the inside walls 6, 8 are pressed against the pack.
  • the inside walls will be pressed towards each other, as is shown in Fig. 6.
  • the bag 26 itself will press against the pack 2.
  • the pack is clamped on all sides.
  • the volume of the pack will decrease and as a result of this too air will escape from the pack.
  • the pack will assume the predetermined shape, as shown in Fig. 6.
  • the folding means 40 are deactivated, so that air can escape from the pack at an accelerated rate (line B).
  • the pressure in the pack 2 and in the space 12 has decreased to approximately 50 mbar.
  • the contents of the pack have moreover been compressed into the predetermined shape, so that the shape of the pack no longer changes.
  • the pack is now sealed under the control of the control means 30 with the aid of closing means, for instance in the form of welding means 42, which are likewise arranged on the cover 34.
  • the control means thereupon control the vacuum pump 25 at time t7, in such a manner that the pressure in the chamber and hence in the space 12 will gradually rise to 1 atm. again. Because the pack 2 has been sealed, the pressure in the pack will remain 50 mbar. Owing to the fact that the pressure outside the pack presently becomes much greater than the pressure in the pack, the pack will become rigid and maintain its desired predetermined shape.
  • the control means When the pressure in the chamber has run up to, for instance, 1 atm, it is possible, for instance at time t8, for the control means to deactivate the pressure fluid means, so that the bag no longer presses the inside walls towards each other. The pack has then been pressed on for the period of time C, see Fig. 10. The inside walls will thereafter move away from each other due to the spring action of the hinges 10.
  • the finished vacuum pack can be removed from the chamber and has a shape as shown in Fig. 9.
  • the pack has a desired shape deviating from a beam, which shape is maintained as a result of the vacuum pressure prevailing in the pack.
  • the pack further has two opposite sidewalls 44, 46, at least a first wall portion of a first sidewall 44 of the opposite sidewalls and at least a second wall portion of a second sidewall 46 of the opposite sidewalls being directed obliquely relative to each other.
  • the entire sidewalls 44, 46 are directed obliquely relative to each other. Both sidewalls are each disposed substantially in a flat plane.
  • the pack further comprises a bottom 48, which connects to the two opposite upright sidewalls 44, 46, while the two upright sidewalls at least substantially slant towards each other.
  • the two upright sidewalls 44, 46 terminate at the top of the pack in a closing seam 50.
  • the closing seam 50 is at least substantially parallel to the bottom 48.
  • the two upright sidewalls 44, 46 at least substantially have a rectangular shape.
  • the pack further comprises a second pair of opposite upright sidewalls 52, 54, each having at least three circumferential edges respectively connecting to the bottom 48 and the two first-mentioned upright sidewalls 44, 46.
  • Each sidewall 52, 54 of the second pair of upright sidewalls has a triangular shape.
  • each sidewall of the second pair of upright sidewalls at least partly has a concave shape on the outside of the pack. This has been caused by the envelope or the bag 26 which, as has been described hereinbefore, has been pressing directly against the walls 52, 54.
  • the pack will be evacuated faster (line C), so that perhaps not all of the crinkles disappear from the pack.
  • the pressure in the pack for instance at time t4 will correspond sufficiently with the pressure outside the pack, so that the pack is properly deformable.
  • the pack acquires the desired eventual shape, because the pack is pressed on during at least a part of the period in which the pack is deformable. It is preferred that in all cases the pack is compressed until the end of the period in which the pack is deformable, so that the pack will definitely maintain the acquired shape; that compressing the contents of the pack with the aid of the opposite sidewalls is started after the pack has been closed.
  • Fig. 11 shows a process in which again no folding means are present for keeping the flap of the pack 2 squeezed shut.
  • the evacuation is started at time t3.
  • the pressure in the pack (line D) and the pressure outside the pack in the space 12 will initially decrease fast as well, until at time t6 both inside and outside the pack a pressure of 75 mbar is present.
  • the control means control the welding means 44, in such a manner that the evacuated pack is closed airtightly.
  • the control means 30 control the vacuum pump, in order that the pressure in the interior space 12, but outside the pack 12, is further reduced to, for instance, 10 mbar.
  • the pack will again bulge to some extent, and the foil of the pack will be stretched, so that crinkles, if any, will disappear from the pack.
  • control means control in such a manner that subsequently at time t12, which is after time t10, the inside walls of the holder 4 are pressed towards each other, so that the contents of the pack are compressed into the desired shape.
  • time t12 the pressure outside the pack and the pressure inside the pack correspond to a sufficient extent to render the pack properly deformable.
  • the pressure in the chamber is increased gradually again from time t7, as has been discussed in relation to Fig. 10.
  • the termination of the compression of the contents of the pack can again take place at time t9 or t8.
  • the pack 2' will again bulge to some extent and any folds or crinkles in the foil of the pack 2' will be stretched.
  • the control means control the pressure fluid unit 30, for instance at time t13, in such a manner that the inside walls 6, 8 are pressed towards each other by the bag 26.
  • the contents of the pack are then compressed again as has already been explained with reference to Fig. 10 and Fig. 11.
  • the pack will assume the desired shape again, as shown in Figs. 6 and 9.
  • the pressure in the chamber is gradually raised again to an atmospheric value and at time t9 or t8 the pressure fluid unit 30 can be deactivated.
  • the pack 2' is now ready and has the properties as discussed with reference to Fig. 9.
  • Fig. 13 shows a second embodiment of an apparatus according to the invention for processing a pack 2''.
  • the pack 2'' to be processed is already sealed at its upper end, like the pack 2', but the pack has not yet been evacuated.
  • the appearance of the pack 2'' is therefore as shown in Fig. 2 and, together with the holder 4, as shown in Fig. 5, is placed in the apparatus of Fig. 13.
  • Fig. 13 shows a rigid chamber 112 open at one end, which is arranged with the open end directed downwards.
  • a bag-shaped body in this case designed as a double-walled rubber bag 126.
  • the pressure fluid unit 30 for supplying compressed air to the interior of the bag and thereby inflating the bag.
  • hinged clamps 117 are mounted, with which a supporting plate, in this case cover 116, can be clamped airtightly against the chamber.
  • the holder 4 Arranged within the bag 126 with slight clearance is the holder 4 with the pack 2'' arranged therein. The pack is closed but has not been evacuated yet.
  • the cover 116 contains a centrally located opening 131.
  • a welding strip 118 has been welded along the edges 129 thereof against the inside wall of the pack.
  • the welding strip is provided with a number of openings 119 located within the weld edges but off the centre (see also Fig. 13).
  • the apparatus further comprises the vacuum element 121 which can be connected airtightly onto the cover 116 over the opening 131 therein by means of a sealing ring 127.
  • the interior space of the vacuum element is connected to a line 123 which is connected with the vacuum pump 25.
  • a welding means 124 which at the end proximal to the opening 131 in the cover comprises an annular welding jaw 122 which can heated electrically.
  • the welding means can be moved within the vacuum element, back and forth, to and from the opening 131.
  • a needle 125 Arranged within the welding means 124 is a needle 125 which by means of an electromagnet can move back and forth relative to the welding jaw 122 through a central opening in the welding jaw.
  • the apparatus according to Fig. 13 is used as follows. First, the holder 4 accommodating the pack 2'' which has been completely filled and closed airtightly but not evacuated yet, is slipped into the bag 126 without the bottom (or the chamber 112 with the bag 126 is arranged over the pack). At this time, the cover 116 and the vacuum element 121 have not been fitted yet. When the holder with the pack has been disposed in the bag, the cover 116 is placed on the chamber 112 and with the aid of the pivoting clamps 117 pressed airtightly against the edges of the chamber. Then a stamp 128 (Fig. 14) is inserted through the opening in the cover.
  • the stamp 128 is moved up so far that the convex forward end thereof to some extent presses upwards the foil at that point and also the welding strip 118 located behind it. In this position, the stamp is fixed. Now, compressed air is supplied to the bag 126, which expands as a result, whereby the outside wall of the bag settles against the inside wall of the chamber and the outside wall of the bag is pressed against the holder, so that the inside walls 6, 8 of the holder 4 are pressed towards each other (Fig. 4). The bottom of the bag thereby presses the pack against the cover 116 and also against the stamp 128 disposed in the opening thereof, so that the pack is compressed on all sides.
  • the pack is pressed on as strongly as is needed to reduce the relative mobility of the granules to such an extent that upon the subsequent evacuation no granules are sucked out of the filling.
  • the stamp 128 is now removed from the opening 131 and from the cover and the vacuum element 121 is then connected to the cover 116. Via the vacuum line 123 the interior of the vacuum element is evacuated.
  • the foil 120 adjacent the opening 131 is to some extent sucked towards the vacuum element and thereby moves away from the welded strip. Owing to the openings 119 present in the welding strip, no pressure difference arises on opposite sides of the welding strip, so that it maintains the position assumed.
  • the electromagnet operating the needle 125 is now activated, so that the needle is moved outwards and pierces a hole in the foil. In doing so, the needle does not touch the welding strip 118. This is the situation as depicted in Fig. 13.
  • the welding means is activated, so that through its heated welding jaw 122 it presses the foil 120 and the welding strip against each other and welds them together.
  • the welding strip is supported by the filling which has become hard through the compression of the pack and the vacuum.
  • the inside walls 6, 8 can be flexible, rather than rigid. It is important, however, that at least a first portion of the first inside wall 6 of the opposite inside walls and at least a second portion of the second inside wall 8 of the opposite inside walls are directed obliquely relative to each other at least during a part of the period in which the pack is deformable, see for instance Fig. 15 or 16. Accordingly, such oblique orientation can also result from the bending of the inside walls during the compression of the contents of the pack. Also, it is possible to use more than two inside walls movable towards each other.
  • the opposite inside walls at least substantially slant towards each other, at least during a part of the period in which the contents of the pack are compressed. See for instance Fig. 15.
  • Fig. 16 both the upper half and the lower half of the inside walls slant towards each other in upward and downward direction, respectively.
  • at least one of the inside walls substantially has a curved surface. It holds for the inside walls of Fig. 3, however, that the inside walls are each at least substantially located in a flat plane and are not parallel to each other at least during a part of the period in which the contents of the pack are compressed.
  • the inside walls can also be designed without hinges and the inside walls can be pressed towards each other with other means than a bag, for instance using a hydraulic drive mechanism such as a linear actuator.
  • the pack can also be placed in the chamber in inverted position. This applies invariably to the packs 2', 2'', which are already closed.
  • the pack can also assume other predetermined, fancy forms, as is shown in Fig. 17. It holds for this finished pack that it comprises at least two opposite sidewalls, with at least a first wall portion 80 (hatched) of a first sidewall of the opposite sidewalls and at least a second wall portion 82 of a second sidewall 8 of the opposite sidewalls are directed obliquely relative to each other.
  • At least one of the sidewalls substantially is not located in a flat plane and that at least one of the sidewalls substantially comprises a curved surface 84 and at least two opposite upright sidewalls 6, 8, with the two upright sidewalls at least substantially slanting towards each other in upward direction and that the two upright sidewalls at the top of the pack terminate in a closing seam.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Vacuum Packaging (AREA)
  • Packages (AREA)
EP96203042A 1995-11-01 1996-10-31 Vakuumverpackung mit speziellem Äusseren sowie Verfahren und Gerät zur Erzielung einer solchen Vakuumverpackung Withdrawn EP0771738A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL1001550 1995-11-01
NL1001550A NL1001550C2 (nl) 1995-11-01 1995-11-01 Vacuümpak met een bijzonder uiterlijk en werkwijze en inrichting voor het verkrijgen van een dergelijk vacuümpak.

Publications (1)

Publication Number Publication Date
EP0771738A1 true EP0771738A1 (de) 1997-05-07

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP96203042A Withdrawn EP0771738A1 (de) 1995-11-01 1996-10-31 Vakuumverpackung mit speziellem Äusseren sowie Verfahren und Gerät zur Erzielung einer solchen Vakuumverpackung

Country Status (3)

Country Link
EP (1) EP0771738A1 (de)
FR (1) FR2740434B1 (de)
NL (1) NL1001550C2 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9567157B2 (en) 2011-02-07 2017-02-14 Intermodal Sciences, Llc Systems and methods for packaging and transporting bulk materials
US10815051B2 (en) 2015-06-05 2020-10-27 Intermodal Sciences, Llc Container for transport of bulk liquids using dry trailers

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3545983A (en) * 1968-07-15 1970-12-08 Fmc Corp Method of deoxygenating and packaging of food products
FR2079331A1 (de) * 1970-02-09 1971-11-12 Grace W R Ltd
EP0121211A1 (de) * 1983-03-31 1984-10-10 Erich Karlsen Gerät zum Evakuieren von Koch- und Vorratsbeuteln
EP0441189A1 (de) * 1990-02-06 1991-08-14 Satake Engineering Co., Ltd. Verfahren zum Vakuumverpacken und Vorrichtung zur Ausübung des Verfahrens
EP0475514A1 (de) * 1990-09-04 1992-03-18 Sara Lee/DE N.V. Verfahren und Vorrichtung zur Herstellung einer mit einem pulverförmigen Material gefüllten Vakuumverpackung
US5331789A (en) * 1993-03-23 1994-07-26 Whirlpool Corporation Vacuum processing machine and method

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3545983A (en) * 1968-07-15 1970-12-08 Fmc Corp Method of deoxygenating and packaging of food products
FR2079331A1 (de) * 1970-02-09 1971-11-12 Grace W R Ltd
EP0121211A1 (de) * 1983-03-31 1984-10-10 Erich Karlsen Gerät zum Evakuieren von Koch- und Vorratsbeuteln
EP0441189A1 (de) * 1990-02-06 1991-08-14 Satake Engineering Co., Ltd. Verfahren zum Vakuumverpacken und Vorrichtung zur Ausübung des Verfahrens
EP0475514A1 (de) * 1990-09-04 1992-03-18 Sara Lee/DE N.V. Verfahren und Vorrichtung zur Herstellung einer mit einem pulverförmigen Material gefüllten Vakuumverpackung
US5331789A (en) * 1993-03-23 1994-07-26 Whirlpool Corporation Vacuum processing machine and method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9567157B2 (en) 2011-02-07 2017-02-14 Intermodal Sciences, Llc Systems and methods for packaging and transporting bulk materials
US10815051B2 (en) 2015-06-05 2020-10-27 Intermodal Sciences, Llc Container for transport of bulk liquids using dry trailers

Also Published As

Publication number Publication date
NL1001550C2 (nl) 1997-05-02
FR2740434A1 (fr) 1997-04-30
FR2740434B1 (fr) 1997-12-19

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